On this day in Yankee history...
1938: Lou Gehrig plays in his 2,000th consecutive game and collects a RBI single, helping the Yankees defeat the Red Sox 12-5.
http://www.retrosheet.org/boxesetc/1938/B05310NYA1938.htm
1983: AL President Lee MacPhail suspends George Steinbrenner for one week, citing 'repeated problems' with the outspoken owner's public criticism of umpires. Steinbrenner, who was fined $50,000 by Commissioner Bowie Kuhn during spring training for berating some NL umpires, cannot attend games or be in his Yankee Stadium office during the suspension.
1989: At the Stadium, Deion Sanders makes an impression his Yankee debut. He collects an outfield assist and an RBI, and sparks a five-run rally in the seventh with a single. The Bombers beat the Mariners 9-5.
http://www.retrosheet.org/boxesetc/1989/B05310NYA1989.htm
2010: Alex Rodriguez may be something less than his usual superhuman self this season, but it's still a bad idea to issue an intentional walk to face him with the bases loaded. The Indians find this out the hard way, as A-Rod connects for a grand slam in the 7th inning, helping to turn a 2-1 Yankee lead into an 11-2 rout. The slam is the 20th of his career, placing him third on the all-time list, behind Lou Gehrig (23) and Manny Ramirez (21).
http://www.retrosheet.org/boxesetc/2010/B05310NYA2010.htm